Will ensure that BJP wins all 28 seats of Karnataka in 2019 Lok Sabha polls: BSY

The current physical distancing guidelines provided by the World Health Organisation (WHO) and by the US Centers for Disease Control and Prevention (CDC) may not be adequate to curb the coronavirus spread, according to a research which says the gas cloud from a cough or sneeze may help virus particles travel up to 8 metres. The research, published in the Journal of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.

Study author, MIT associate professor Lydia Bourouiba, warned that droplets of all sizes can travel 23 to 27 feet, or 7-8 metres, carrying the pathogen.

According to Bourouiba, the current guidelines are based on "arbitrary" assumptions of droplet size, "overly simplified", and "may limit the effectiveness of the proposed interventions" against the deadly pandemic.

 She explained that the old guidelines assume droplets to be one of two categories, small or large, taking short-range semi-ballistic trajectories when a person exhales, coughs, or sneezes.

However based on more recent discoveries, the MIT scientist said, sneezes and coughs are made of a puff cloud that carries ambient air, transporting within it clusters of droplets of a wide range of sizes.

Bourouiba warned that this puff cloud, with ambient air entrapped in it, can offer the droplets moisture and warmth that can prevent it from evaporation in the outer environment.

"The locally moist and warm atmosphere within the turbulent gas cloud allows the contained droplets to evade evaporation for much longer than occurs with isolated droplets," she said.

"Under these conditions, the lifetime of a droplet could be considerably extended by a factor of up to 1000, from a fraction of a second to minutes," the researcher explained in the study.

The MIT scientist, who has researched the dynamics of coughs and sneezes for years, added that these droplets settle along the trajectory of a cough or sneeze contaminating surfaces, with their residues staying suspended in the air for hours.

"Even when maximum containment policies were enforced, the rapid international spread of COVID-19 suggests that using arbitrary droplet size cutoffs may not accurately reflect what actually occurs with respiratory emissions, possibly contributing to the ineffectiveness of some procedures used to limit the spread of respiratory disease," Bourouiba wrote in the study

Hubballi, May 14: South Western Railway (SWR) has so far ferried about 54,000 passengers, including migrant workers, students and stranded people to 11 states to reach their home towns by Shramik Special trains.

So far 40 Shramik Specials were run one each from Kabakaputtur in Mysuru and Hubballi and remaining 38 from Chikkabanavara/Malur from Bengaluru area. About 54,000 passengers were ferried to different parts of the country. Maximum Shramik Specials trains train services were run to Lucknow (9) and Danapur (7).

Shramik Specials were run to Bihar (Bakora, Danapur, Baruni, Darbhanga), West Bengal (Purila, Bankura, New Jalpaiguri), Jharkhand (Hatia, Barkakana), Rajasthan (Jaipur, Udaipur), Uttar Pradesh (Lucknow, Gorakhpur), Orissa (Bhubaneswar), Madhya Pradesh (Gwalior), Uttarakhand (Haridwar), Himachal Pradesh (Una), Tripura (Agartala) and Jammu and Kashmir (Udhampur).

SWR is transporting passengers to their destination as per the demand of the State Government with proper protocol and the receiving State Government is ready to accept them.

Mangaluru, Apr 19: District-in-charge Minister Kota Srinivas Poojary said that Rs 2000 each has been deposited in the bank accounts of 6,122 construction workers, who are registered with the labour department in the Dakshina Kannada district. The amount will be deposited in the accounts of other registered construction workers at the earliest.

The state government had announced Rs 2000 to construction labourers who are registered and have lost their livelihood due to the on-going nationwide lockdown to curb the spread of the coronavirus. The curbs, which were imposed on March 24, have been extended till May 3. "The labourers were reeling under hardship after construction activities came to a halt," said the Minister.

Supply food

Local bodies should make arrangements to supply food for stranded labourers, destitutes and beggars in all the ULBs in Dakshina Kannada district, Poojary said. 

"No one should starve during the lockdown period. All the ULBs should identify destitutes, migrant labourers in their jurisdiction and arrange food for them. In case of necessity, the help of NGOs can also be taken," he added
The minister announced that Asha workers and health workers would collect information on people's health by visiting the houses in the district and submit a report within 10 days.